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6981696 = 2632172331
BaseRepresentation
bin11010101000100001000000
3111010201002100
4122220201000
53241403241
6405350400
7113225541
oct32504100
914121070
106981696
113a394a7
122408400
1315a5aa7
14cda4c8
1592d9b6
hex6a8840

6981696 has 168 divisors, whose sum is σ = 22823424. Its totient is φ = 2027520.

The previous prime is 6981671. The next prime is 6981697. The reversal of 6981696 is 6961896.

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225201 + ... + 225231.

Almost surely, 26981696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6981696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11411712).

6981696 is an abundant number, since it is smaller than the sum of its proper divisors (15841728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6981696 is a wasteful number, since it uses less digits than its factorization.

6981696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 76 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 6981696 is about 2642.2899159630. The cubic root of 6981696 is about 191.1262380110.

The spelling of 6981696 in words is "six million, nine hundred eighty-one thousand, six hundred ninety-six".